Telephone-call register



(No Model.) 4 Sheets Sheet 1. W. E. ROBINSON. TELEPHONR'OALL REGISTER.

Patented July 29, 1890.

D DH M B. W T

COLUMN N01 COLUMN N0. 2.

3 [1 INVENTOI? ATTORNEY TNE mums PETERS on, mwwumo WASHINGTON, p. c.

(No Model.) 4 Sheets-Sheet 2.

W. E. ROBINSON.

TELEPHONE CALL REGISTER. No. 433,307. Patented July 29, 1890.

ATTORNEY (No Model.) 4 Sheets-Sheet 3.

W. E. ROBINSON.

TELEPHONE CALL REGISTER.'

No. 433,807. Patented July 29, 1890.

W/TNESSEkS v //VVE/VT)/? By z W) ATTORNEY (No Model.) 4 Sheets-Sheet 4.

W. E. ROBINSON. TELEPHONE CALL REGISTER.

No. 433,307. Patented July 29, 1890.

IN VE/VTOI? WITNESSES:

By i 3 M Y ATTORNEY uma, WASHDNGTOI n c UNITED STATES PATENT OFFICE.

\VILLIS EUGENE ROBINSON, OF FARIBAULT, MINNESOTA.

TELEPHONE-CALL REGISTER.

SPECIFICATION forming part of Letters Patent-N0. 433,307, dated July 29, 1890.

Application filed February 15, 1889. Serial No. 299,970. (No model.)

- To all whom it may concern.-

Be it known that I,WILLIs EUGENE ROBIN- SON, of Faribault, in the county of Rice and State of Minnesota, have invented a new and Improved Telephone-Call Register, of which the following is a specification, reference being had to the annexed drawings, forming a part thereof, in which- Figure 1 is a front elevation of my improved telephone-call register. Fig. 2 is a front elevation of the same, with the dial and front of the case removed. Fig. 3 is a sectional plan view. Fig. 4 is a vertical transverse section taken on line a a: in Fig. 2. Fig. 5 is a vertical transverse section taken on line y y in Fig. 2, and Fig. 6 is a front elevation of the tally-board.

Similar letters and figures of reference indicate corresponding parts in all the views.

My invention consists in the combination with a train of spring-actuated gearing provided with a stop-motion, of an electromagnetic releaser for starting the train, a dial for recording the number of separate movements of the train, and mechanism for permitting of the winding of the driving-spring without disarran gin g the other parts of the apparatus.

The invention further consists in devices which permit of setting the index, all as will be hereinafter more fully described, and pointed out in the claims.

The casing A, which contains all of the mechanism of the register, is provided with a dial B on the front thereof, which is apertnred for the arbor Z and the boss D. 'IVithin the casing is arranged a train of gearing consisting of a wheel a, pinion Z), wheel 0, pinion (1, wheel e, pinion f, wheel g, pinion h, wheel i, and pinion mounted upon the arbors is Z m n 0 19, all of the said arbors being journaled in the frame E, the arbor Z being provided with the driving-spring q, and furnished with a squared end for receiving the winding-key. The pinion b, which meshes into the wheel a, is loosely mounted upon the arbor Land carries a disk 1', to which is pivoted a pawl s, pressed by the spring t, the said pawl being arranged to engage the ratchet a, secured to the arbor Z, the teeth of the ratchet and the pawl being arranged relative to the arbor Z, so that when the arbor is turned in the direction required to wind the spring q it will not turn the disk 1'; but when the arbor is turned in the opposite direction by the unwinding of the spring q the ratchetwheel u will engage the pawl and turn the disk and the pinion I) attached thereto.

To the arbor within the frame E is secured a ratchet-wheel v, which is engaged by a pawl w, pivoted to the frame and pressed into engagement with the ratchet by the spring a. The spur-wheel a is secured to the arbor 7c, and upon the said arbor outside of the spur-wheel a is loosely placed a disk b,which is connected with the disk 0, also loosely placed upon the arbor 7t and provided with the boss D,which extends through the dial B and is reduced in diameter and threaded to receive the disk d, which carries the index 6.

To the arbor 7- between the disks b c is secured the ratchet-wheel f, which is engaged by the pawl g, pivoted to the disk I), the ratchets f n being oppositely arranged with'respect to each other, the ratchet-wheel 1) being arranged to permit of the forward movement of the arbor 70 while preventing it from moving backward, and the ratchet f being arranged to permit of turning the index e backward when it is desired to return it to the point of starting. The arbor 19 carries a fly-fan h, and in the side of the wheel t' is inserted the stud '6. Upon the arbor n is mounted a cam j,which is provided with the notch 76. The wheel a is provided with a notch Z between two of its teeth for receiving the right-angled end m of the lever 11, the said lever being attached to the arbor 0', journaled in the frameE. From the said arbor 0 a curved arm 19 extends upwardly and is curved over toward the arbor 0 in position to .engage the stud t" in the manner presently to be described. To the same arbor 0' is secured a curved arm g, which extends over the arbor TL and is bent at right angles parallel with the said arbor, the end thus bent extending over the edge of the cam j.

In the frame E is secured a right-angled arm rf, which supports the electro-magnet F, and in the upright arm of which is pivoted an armature G,which extends over the face of the magnet F. To the arbor ois secured the arm'sflwhich is-curved upwardly and supports the free end of the armature G when no current passes through the magnet F.

To the top of the casing A are secured the binding-posts t u, for receiving the line-wire H. To the binding-post t is pivotedaswiteharm 4), and to the binding-post a is attached a contact-piece to, which is capable of being engaged by the switch-arm v. A contactpiece a is secured to the top of the casing A, and is also capable of being engaged by the switch-arm 0. From the binding-post u the wire 1 extends to one terminal of the magnet F, the remaining terminal of the magnet being connected by the wire 2 with the contactpiece 00, so that when the switch-arm o is in contact with the piece 00 the current passes from the line through the binding-post u and wire 1 to the electro-magnet F, thence by the wire 2 to the contact-piece as through the switch-arm o and binding-post t to the line H, so that whenever an impulse is sent over the line H the electro-inagnet F will be energized, and when it is desired to cut the electro-magnet F out of the line the switch-arm v is moved over to the contact w, when the current of the main line will pass through the binding-post u, contact-piece to, switcharm 11, and the binding-post 25'. Vhenever the magnet F is energized the armature G will be drawn down, and by virtue of its conv tact with the arms turns the arbor othrough a part of a revolution, thereby lifting the end of the lever n'out of the notch Z of the wheel 0, at the same time releasing the stud c" from the curved arm p, and also lifting the angled end of the arm q out of the notch k of the cam j. The train of gearing being thus released is propelled by the spring q, thereby carrying the index 6 forward. Whenever the cam j makes a revolution the arm q drops into the said cam but the downward movement of the said arm q, and consequently the forward movement of the arm 19, is limited by the engagement of the rightangled end m of the lever n with the periphery of the wheel (3, between the teeth of the said wheel, the end m of the lever 01 being made much thinner than the space between the teeth of the wheel, so that the wheel 0 may continue to revolve until it has made a complete revolution, when the end m of the lever n drops into the notch Z of the said wheel, thereby bringing the arm 13 into engagement with the stud 2", stopping the motion of the train before the cam j can strike the arm q. The apparatus remains in astate of rest until the magnetF is again energized, when the operation just described is repeated. Every operation of the gearing moves forward the index 6. one division of the dial. In the present case the dial is provided with eight divisions, and consequently is capable of recording eight calls.

The fly-fan h retards the motion of the train of gearing so that one operation of the train covers a period of about two minutes. This provision is to avoid making any record of a second or third call made within a space of two minutes, so that if the subscriber should be in the vicinity of the apparatus he numbered 1 2 3 4, &c.,representing the lines.

of the subscribers, and in column No. l are inserted plugs having figures on the faces, representing the numbers of the subscribers, and when the attendant at the central office makes a call which is not responded to, he removes one of the plugs from column No. 1 and places it in column No. 2, in the row belonging to the subscriber who was called, which in the case represented was No. 2, so that after a suitable time has elapsed the. attendant at the central office again calls No.2, and it'- he is present, telephonic communication is proceeded with, as usual; but if he is not present, the second call is recorded on the register.

Having thus described my invention, 1 claim as new and desire to secure by Letters Patcut- 1. The combination, with the index-carrying arbor k, a driving-arbor Z geared thereto, and provided with a toothed pinion 0, having a notch Z, the arbor it above the arbor Z, driven therefrom and provided with a peripherallynotched cam j, and the arbor 0 operated from arbor n and provided with a wheel having pin 2" on one side, of the magnet having a horizontal armature G, the rock-shaft 0' above the arbor k, and provided with an arm 3 extending under the free end of the armature, an arm p curved upward and inward into the path of the pin t, an arm q extending over the arbor n and bent laterally to enter the notch of said cam j,and the arm 07/ extending over the pinion c and having a tooth m to enter the notch Z, substantially as set forth.

2. In a telephone-call register, the combination of the index-carrying arbor, two sets of pawl-and-ratchet mechanism placed on the said arbor and oppositely arranged with respect to each other, a driving-arbor, a pinion placed loosely on the said driving-arbor and connected with the said arbor by a pawl and ratchet, and an index-carrying wheel placed upon the index-carrying arbor and arranged to be engaged by the pinion of the drivingarbor, substantially as specified.

WVILLIS EUGENE ROBINSON.

Witnesses:

H. E. NORTON, R. A. Mom. 

